Etymologies

German garaus, all out, drink up : gar, completely (from Middle High German, from Old High German garo) + aus, out, up; see auslander.

(American Heritage® Dictionary of the English Language, Fourth Edition)

From Middle French carousser ("to quaff, drink, swill"), from German garaus ("quite out"), from garaustrinken ("to drink up entirely, guzzle"). More at drink. (Wiktionary)

Examples

Puzzled and alarmed, shaking his head ruefully as he recalled the carouse of the silent, he hobbled down the mountain as fast as he might for the grip of the rheumatism on his knees and elbows, and entered his native village.

The carouse was a tremendous one, as usually was the case where Hollock was the Amphitryon, and, as the potations grew deeper, an intention became evident on the part of some of the company to behave unhandsomely to Norris.

Though rumor has it that this section of the city is on the cusp of gentrification, Pilsen is still largely a neighborhood of empty lots and boarded-up buildings, where gangs roam after midnight, and groups of men congregate on street corners to drink and carouse.

But just as their neighborhood was becoming safer and cleaner, an influx of new bars, clubs and cheap hotels has brought a new irritant: hordes of barhopping 20-somethings who carouse until the wee hours.